TrustedReviews posted a review of the Fujitsu-Siemens Lifebook P1510 tablet PC

Don’t expect it to be able to compete with bigger laptops in terms of raw performance as the ultra-low voltage Pentium M 753 processor is only clocked at 1.2GHz. It has 2MB of cache and operates at a 400MHz bus. The chipset is the Intel 915GMS, which is a 400MHz bus version of the 915GM and only supports single channel DDR2 memory.

Fujitsu-Siemens Lifebook P1510 Review